234423551 has 4 divisors (see below), whose sum is σ = 234463992. Its totient is φ = 234383112.

The previous prime is 234423533. The next prime is 234423569. The reversal of 234423551 is 155324432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (234423533) and next prime (234423569).

It is a cyclic number.

It is not a de Polignac number, because 234423551 - 2¹⁴ = 234407167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234420551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9701 + ... + 23726.

It is an arithmetic number, because the mean of its divisors is an integer number (58615998).

Almost surely, 2^234423551 is an apocalyptic number.

234423551 is a deficient number, since it is larger than the sum of its proper divisors (40441).

234423551 is an equidigital number, since it uses as much as digits as its factorization.

234423551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40440.

The product of its digits is 14400, while the sum is 29.

The square root of 234423551 is about 15310.8964793052. The cubic root of 234423551 is about 616.5955888210.

Adding to 234423551 its reverse (155324432), we get a palindrome (389747983).

The spelling of 234423551 in words is "two hundred thirty-four million, four hundred twenty-three thousand, five hundred fifty-one".